NPI Portal NPI Lookup & Verification

Dr. Douglas Paul Knapp, D.C.

Dr. Douglas Paul Knapp is a Chiropractor provider (Chiropractor) practicing in Cedar Park, TX, registered in the NPPES registry with NPI 1467501569 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1467501569
Entity type Individual (Type 1)
Name Dr. Douglas Paul Knapp
Credential D.C.
Sex Male
Practice address Cedar Park, TX, 78613
Phone 5124567508
Enumeration date 2007-01-09
Last updated in NPPES 2019-01-18

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 13248 TX

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
NONE Other TX NONE
Copy-ready billing details
Provider: Douglas Knapp, D.C.
NPI: 1467501569
Taxonomy: 111N00000X (Chiropractor)
Address: Cedar Park, TX, 78613

Other providers at this practice address

NPI Name Type Specialty Location
1588961601 Nilouphar Zahedi Individual Chiropractor Cedar Park, TX

Verify this record

Cross-check NPI 1467501569 against the authoritative CMS record: view Dr. Douglas Paul Knapp on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Douglas Knapp?
Douglas Knapp is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-01-18.